int main(int argc, char *argv[], char *envp[])
{
    printf("### ARGC ###\n%d\n", argc);
    printf("### ARGV ###\n");
    while (*argv)
        printf("%s\n", *(argv++));
    printf("### ENVP ###\n");
    while (*envp)
        printf("%s\n", *(envp++));
    return 0;
}